Electronics Forum: condition and reflow (Page 4 of 83)

Time and temp in lead and lead-free reflow

Electronics Forum | Mon Jul 28 14:01:05 EDT 2008 | pcbbuilders

thanks, looks like an interesting product. any idea of the cost? they don't list it on their site. not sure if i can afford it yet.

Time and temp in lead and lead-free reflow

Electronics Forum | Tue Jul 29 10:46:17 EDT 2008 | realchunks

Oh, well if you can profile, model your profile to the profile supplied by the paste manufacturer. Anything outside of their recommended profile is all experimantal.

Time and temp in lead and lead-free reflow

Electronics Forum | Tue Jul 29 10:53:58 EDT 2008 | pcbbuilders

Some profiles can be difficult to get exactly, so I was wondering what effect a slight deviation might have.

Time and temp in lead and lead-free reflow

Electronics Forum | Fri Jul 25 23:01:04 EDT 2008 | chip_flip

What paste are using? You should referance the manufactures time and temperature specification. Running lead-free in a 5 zone oven can be done with out a problem but it is not production friendly. If you are concerned with through put I would look fo

Time and temp in lead and lead-free reflow

Electronics Forum | Sat Aug 02 08:06:11 EDT 2008 | pcbbuilders

Is there a limit to the time that most components can stay at temperatures around 130-200 deg c? if i slow the time, the first 4 zones will be at this temp for about 5 minutes in no lead process. i am concerned that some chips wont be rated at this t

Time and temp in lead and lead-free reflow

Electronics Forum | Sat Jul 26 07:42:49 EDT 2008 | pcbbuilders

I am not very concerned about production time, but it is always a thought! Quality is more importnant of course. We have 2 different pastes, with almost identical requirements. We can get close to their profiles, but i am worried that i am spending

Time and temp in lead and lead-free reflow

Electronics Forum | Mon Aug 04 09:30:16 EDT 2008 | grics

If you have concerns, you can look at the datasheet for each component or contact one of their application or materials engineers and find out what the components are rated for...process-wise. IE, how long can I be in the oven with this part, at what

TAL during reflow

Electronics Forum | Mon Feb 13 13:43:54 EST 2006 | pjc

You will begin to de-wet at a high TAL and actually likely see all of the conditions you list.

reflow profile development

Electronics Forum | Tue Sep 09 12:05:44 EDT 2008 | tonyamenson

First and fore most is to find your paste manufacturer spec sheets. Read it over several times and let it all sink in. Then call them with questions as they want to keep your business so their engineers want to help you use their product. I assume y

PCB post reflow cleaning

Electronics Forum | Fri Mar 26 11:48:45 EST 2004 | patrickbruneel

I know it is not easy to quantify zero. The biggest dilemma the no-residue technology is facing "disbelieve" The most accurate proof to the fact that all solids disapear under heat is TGA analysis. Test the no-residue in your facility under the rig


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